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How Animal Hearing Ranges Compare to Human Hearing

Hearing range is usually described in hertz (Hz), the number of sound wave vibrations per second, and it varies dramatically across species. Here is roughly how a few familiar animals compare to people.

Humans: roughly 20 Hz to 20,000 Hz

This is the commonly cited textbook range for a young person with healthy hearing, though the upper limit drops noticeably with age, which is why some ultra-high-pitched sounds audible to teenagers are inaudible to most older adults.

Dogs: roughly 40 Hz to 60,000 Hz

Dogs hear a similar low end to humans but a much higher upper range, which is the whole principle behind "silent" dog whistles β€” they emit a frequency high enough to be inaudible to people but clearly audible to dogs.

Cats: roughly 45 Hz to 65,000 Hz

Cats have one of the widest hearing ranges among common pets, likely an evolutionary holdover from hunting small rodents, which communicate and move at frequencies far above what humans can detect.

Bats: up to around 100,000+ Hz (echolocation)

Many bat species use echolocation, emitting ultrasonic calls far above human hearing and listening for the returning echo to navigate and locate insects in complete darkness. Their hearing range is built almost entirely around detecting these self-generated ultrasonic signals.

Elephants: roughly 16 Hz to 12,000 Hz (strong low end)

Elephants specialize in the opposite direction from bats β€” they can detect infrasound, frequencies below the human hearing threshold, which travels long distances through the ground and air and is thought to help elephants communicate across several kilometers.

Why hearing range varies so much by species

Hearing range tends to track closely with what an animal needs to survive: predators that hunt small, fast-moving prey often evolved high-frequency hearing to detect quiet rustling and high-pitched vocalizations, while large animals that communicate over long distances often evolved low-frequency hearing, since low frequencies travel farther before losing energy.

These numbers are approximate ranges, not precise limits

Published hearing ranges for any species are typically averages drawn from limited testing and vary somewhat by individual, age, and the specific study methodology used, so treat the numbers here as a general sense of comparison rather than an exact scientific boundary.

Frequently Asked Questions

Can dogs really hear sounds no human can hear at all?

Yes β€” a standard dog whistle emits a frequency, typically well above 20,000 Hz, that falls outside the human hearing range entirely but is clearly within a dog's range, which is exactly why the whistle appears silent to people.

Why do some animals lose hearing sensitivity as they age, like humans do?

Age-related hearing loss, especially at the high-frequency end, is common across many species with inner-ear hair cells, since those cells do not regenerate once damaged in most mammals, including humans, dogs, and cats.